These fluororichterite (fluoro-richterite) crystals are from the Wilberforce area in Haliburton County, Ontario, Canada. This highly mineralized area contains several commercial mines as well as locale diggings that are exploited for the recovery of collector quality mineral specimens. Fluororichterite is one of the most sort after species because of the size and quality of the crystals found here. It is a silicate in the Amphibole Family of minerals. It contains the elements Na, Ca, Mg, Si, F, O and H. This piece consists of a mix of greyish calcite that cements together and hosts several fluororichterite crystals. The crystals are oriented at random angles and are many are interpenetrating. Several are double terminated. They appear black but on close inspections are brown and translucent near the surface. This piece measures 2 1/4 x 1 1/4 x 1 inches or 57 x 32 x 25 mm.